In a device with superconductor coupled to two parallel quantum dots (QDs) the electrical tunability of QD levels can be used exploit nonclassical current correlations due splitting Cooper pairs. We experimentally investigate effect finite potential difference across one dot on conductance through other completely grounded in pair splitter fabricated an InAs nanowire. demonstrate that nonlocal transport tuned by means and energy dependence effective density states QDs is relevant for rates...

Recent realization of minimal Kitaev chains brought a breakthrough in Majorana research, which made arrays quantum dots coupled by superconductor spacers the most promising synthetic material for topological architectures. In this paper, we investigate basic building block platform---two via (referred to as an Andreev molecule)---in configuration where two superconducting (SC) loops are created tune SC phase difference across dots. This enables us consider Coulomb interactions was not...

We report on the development of a low-cost, thin-film electrodeposited cadmium telluride solar cell. The most efficient cell developed to date had an efficiency 8.6% (under AM1 illumination), open circuit voltage 0.723 V, short current density 18.7 mA/cm2, and fill factor 0.64. uses Schottky barrier rectifying junction at front surface ohmic contact back. Passivation top improves photovoltaic properties junction.

Cooper pair splitting (CPS) is a process in which the electrons of naturally occurring spin-singlet pairs superconductor are spatially separated using two quantum dots. Here, we investigate evolution conductance correlations an InAs CPS device presence external magnetic field. In our experiments gate dependence signal that depends on both dots continuously evolves from slightly asymmetric Lorentzian to strongly Fano-type resonance with increasing These can be understood simple three-site...

Coupling individual atoms fundamentally changes the state of matter: electrons bound to atomic cores become delocalized turning an insulating a metallic one. A chain could lead more exotic states if tunneling takes place via superconducting vacuum and can induce topologically protected excitations like Majorana or parafermions. Although coupling single atom superconductor is well studied, hybridization two sites with tunability was not reported yet. The peculiar Bardeen-Cooper-Schrieffer...

This article reviews published data on the mechanical properties of additively manufactured metallic materials. The additive manufacturing techniques utilized to generate samples covered in this review include powder bed fusion (e.g., EBM, SLM, DMLS) and ...Read More

Indium arsenide (InAs) nanowires (NWs) are a promising platform to fabricate quantum electronic devices, among others they have strong spin-orbit interaction (SOI). The controlled tuning of the SOI is desired in spin based devices. In this study we investigate possibility by electrostatic field, which generated back gate and two side gates placed on opposite sides NW. strength analyzed weak anti-localization effect. We demonstrate that can be strongly tuned factor 2 with electric field...

A Cooper pair splitter consists of a central superconducting contact, S, from which electrons are injected into two parallel, spatially separated quantum dots (QDs). This geometry as well electron interactions can lead to correlated electrical currents due the spatial separation spin-singlet pairs S. We present experiments on such device with series bottom gates, allows for resolved tuning tunnel couplings between QDs and contacts QDs. Our main findings gate-induced transitions positive...

Abstract Hybrid nanostructures consisting of two parallel InAs nanowires connected by an epitaxially grown superconductor (SC) shell recently became available. Due to the defect-free SC-semiconductor interface and quasi-one-dimensional channels being close by, these platforms can be utilized spatially separate entangled pairs electrons using quantum dots (QD) in so-called Cooper pair splitting (CPS) process. The minimized distance between QDs overcomes limitations single-wire-based...

Cooper pair splitting (CPS) is a way to create spatially separated, entangled electron pairs. To this day, CPS often identified in experiments as spatial current correlation. However, such correlations can arise even the absence of CPS, when quantum dot strongly coupled superconductor, and subgap Shiba state formed. Here, we present detailed experimental characterization those correlations, tunnel barrier strength between neighboring normal electrode tuned. The correlation nonlocal signal...

As the pharmaceutical industry increasingly adopts Pharma 4.0. concept, there is a growing need to effectively predict product quality based on manufacturing or in-process data. Although artificial neural networks (ANNs) have emerged as powerful tools in data-rich environments, their implementation hindered by black-box nature. In this work, ANNs were developed and interpreted demonstrate applicability increase process understanding retrospective analysis of developmental The vitro...

Understanding the microscopic origin of gate-controlled supercurrent (GCS) in superconducting nanobridges is crucial for engineering switches suitable a variety electronic applications. The GCS controversial, and various mechanisms have been proposed to explain it. In this work, we investigated Ta layer deposited on surface InAs nanowires. Comparison between switching current distributions at opposite gate polarities dependence two side gates with different nanowire-gate spacings shows that...

Improving the efficiency of malaria diagnosis is one main goals current research. We have recently developed a magneto-optical (MO) method which allows high-sensitivity detection pigment (hemozoin crystals) in blood via magnetically induced rotational motion hemozoin crystals. Here, we evaluate this MO technique for Plasmodium falciparum infected erythrocytes using in-vitro parasite cultures covering entire intraerythrocytic life cycle. Our novel detected densities as low ∼40 parasites per...

Gate-tunable Josephson junctions embedded in a microwave environment provide promising platform to situ engineer and optimize novel superconducting quantum circuits. The key quantity for the circuit design is phase-dependent complex admittance of junction, which can be probed by sensing radio frequency SQUID with tank circuit. Here, we investigate graphene-based junction as prototype gate-tunable element enclosed loop that inductively coupled resonator operating at 3 GHz. With concise model...

The interface between nanoparticles and bacterial surfaces is of great interest for applications in nanomedicine food safety. Here, we demonstrate that interactions gold nanorods surface molecules are governed by the nanoparticle coating. Polymer-coated nanorod substrates exposed to lipopolysaccharides extracted from Pseudomonas aeruginosa, Salmonella enterica Escherichia coli, attachment monitored using localized plasmon resonance refractometric sensing. number lipopolysaccharide attached...

Gate-controlled supercurrent (GCS) in superconducting nanobridges has recently attracted attention as a means to create switches. Despite the clear advantages for applications, microscopic mechanism of this effect is still under debate. In work, we realize GCS first time highly crystalline superconductor epitaxially grown on an InAs nanowire. We show that epitaxial Al layer can be switched normal state by applying ≃±23 V bottom gate insulated from nanowire hBN layer. Our extensive study...

The observation of the gate-controlled supercurrent (GCS) effect in superconducting nanostructures increased hopes for realizing a equivalent semiconductor field-effect transistors. However, recent works attribute this to various leakage-based scenarios, giving rise debate on its origin. A proper understanding microscopic process underlying GCS and relevant time scales would be beneficial evaluate possible applications. In work, we observed gate-induced two-level fluctuations between state...

Abstract Various promising qubit concepts have been put forward recently based on engineered superconductor subgap states like Andreev bound states, Majorana zero modes or the Yu-Shiba-Rusinov (Shiba) states. The coupling of these via a strongly depends their spatial extension and is an essential next step for future quantum technologies. Here we investigate Shiba state in semiconductor dot coupled to superconductor. With detailed transport measurements numerical renormalization group...

Protein micropatterning has become an important tool for many biomedical applications as well in academic research. Current techniques that allow to reduce the feature size of patterns below 1 μm are, however, often costly and require sophisticated equipment. We present here a straightforward convenient method generate highly condensed nanopatterns proteins without need clean room facilities or expensive Our approach is based on nanocontact printing allows fabrication protein with sizes 80...

Comprehensive understanding of an integrated continuous pharmaceutical technology was achieved in this study by a combining design experiments and mechanistic modeling-based simulations. The powder to granule line consisted twin-screw wet granulation, vibrational fluid-bed drying milling. A Partial Least Squares (PLS) regression model built using Near-infrared (NIR) spectroscopy for the real-time monitoring product moisture content after milling step. split-plot full factorial experimental...

Recently, concerns have been raised about the safety of titanium dioxide (TiO2), a commonly used component pharmaceutical film coatings. The European Union has recently prohibited application this material in food industry, and it is anticipated that same will happen industry. For reason, manufacturers to consider possible impact removing TiO2 from coating tablets. In paper, we present case study commercially produced tablet where containing was replaced with using calcium carbonate (CaCO3)...

The present paper reports the first monitoring and control of ultra-low dose powder feeding using a camera image-based mass flow measurement system. Caffeine was fed via single-screw microfeeder as model active pharmaceutical ingredient (API). mass, sizes particles were successfully monitored in real-time by developed videometric system consisting high-speed process coupled with an image analysis software. also tested feedback mode to automatically reach desired values adjusting feeder speed...

Highly homogeneous low-dose (50 μg) tablets were produced incorporating perfectly free-flowing granules prepared by a fully integrated Continuous Manufacturing (CM) line. The adopted CM equipment consisted of Twin-Screw Wet Granulator (TSWG), Fluid Bed Dryer (CFBD) and Sieving (CS) unit. Throughout the experiments pre-blend lactose-monohydrate corn starch was gravimetrically dosed with 1 kg/h into TSWG, where they successfully granulated drug containing water-based PVPK30 solution. wet mass...

Low-dose tablet formulations were produced with excellent homogeneity based on drug-loaded electrospun fibers prepared by single-needle as well scaled-up electrospinning (SNES and HSES). Carvedilol (CAR), a BCS II class compound, served the model drug while poly (vinylpyrrolidone-co-vinyl acetate) (PVPVA64) was adopted fiber-forming polymer. Scanning electron microscopy (SEM) imaging used to study morphology of HSES SNES samples. Different homogenization techniques compared maximize...

We present a comprehensive electrical characterization of an InAs/InP nanowire heterostructure, comprising two InP barriers forming quantum dot (QD), adjacent lead segments (LSs) and metallic contacts, demonstrate how to extract valuable quantitative information the QD. The QD shows very regular Coulomb blockade (CB) resonances over large gate voltage range. By analyzing resonance line shapes, we map evolution tunnel couplings from few many electron regime, with electrically tunable <1...